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Effects of hoisting parameters on dynamic contact characteristics between the rope and friction lining in a deep coal mine

Author:
Wang, Dagang   Li, Xiaowu   Wang, Xiangru   Shi, Ganyu   Mao, Xianbiao   Wang, Dao’ai  


Journal:
Tribology International


Issue Date:
2016


Abstract(summary):

Highlights

Vibrations of hoisting system with variable acceleration/deceleration are gained.

Three-dimensional contact properties between rope and friction lining are analyzed.

Effects of hoisting parameters on evolutions of slip-stick properties are explored.

Effects of hoisting parameters on evolutions of stress distributions are presented.

Abstract

Effects of hoisting parameters (effective load, acceleration and deceleration) on dynamic contact characteristics between the rope and friction lining in a deep coal mine were analyzed in this study. Effects of hoisting parameters on dynamic tensions during hoisting with variable acceleration and deceleration were explored employing Simulink simulations. Roles of hoisting parameters on contact states, slip amplitude and stress distributions along the contact path were investigated using finite element analyses. The results show distinct tensions and tension differences at both rope ends with different hoisting parameters. Dynamic contact states consist of sticking, slip and mixed regimes during hoisting. Increases of hoisting parameters induce overall increased possibilities of the gross slip, increased stress concentrations and accelerated wear between contacting bodies.



Page:
31-42


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